//客户端断开连接
private void client_DisconnectCompleted(object sender, SocketEventArgs e)
{
//移除客户端
lock (Clients)
Clients.Remove((TcpListenerClient)e.Socket);
e.Socket.DisconnectCompleted -= client_DisconnectCompleted;
e.Socket.ReceiveCompleted -= client_ReceiveCompleted;
e.Socket.SendCompleted -= client_SendCompleted;
DisconnectCompleted?.Invoke(this, e);
}
public void SendCompleted(object Sender, SocketEventArgs E)
{
if (Status == SenderStatus.Sending)
{
if (SendedLength < DataLength)
{
Buffer = new byte[DataLength - SendedLength < BufferLength ?
DataLength - SendedLength : BufferLength];
Buffer = FullData.Skip(SendedLength).Take(Buffer.Length).ToArray();
E.Socket.SendAsync(Buffer); //从内存中读取二进制流，并发送
SendedLength += Buffer.Length;
}
else
{
Status = SenderStatus.Ready;
}
}
else if (Status == SenderStatus.Preparing)
{
Status = SenderStatus.Sending;
Buffer = new byte[BufferLength];
MemoryStream.Position = 0; //将流的当前位置重新归0，否则Read方法将读取不到任何数据
if (SendedLength < DataLength)
{
Buffer = new byte[DataLength - SendedLength < BufferLength ?
DataLength - SendedLength : BufferLength];
Buffer = FullData.Skip(SendedLength).Take(Buffer.Length).ToArray();
E.Socket.SendAsync(Buffer); //从内存中读取二进制流，并发送
SendedLength += Buffer.Length;
}
}
SendOnce?.Invoke(this, new SendOnceEventArgs()
{
Socket = Socket,
NewData = Buffer,
CumulativeLength = SendedLength,
ReceivedLength = Buffer.Length,
TotalLength = DataLength,
Status = Status
});
}
public void ReceiveCompleted(object Sender, SocketEventArgs E)
{
Status = ReceiverStatus.Receiving;
int ReceiveCount = E.DataLength;
if (ReceiveCount == 0)
{
Status = ReceiverStatus.Extractable;
ReceiveOnce?.Invoke(this, new ReceiveOnceEventArgs()
{
Socket = Socket,
NewData = null,
CumulativeLength = ReceivedLength,
ReceivedLength = 0,
TotalLength = DataLength,
Status = Status
});
return;
}
//var Temp = Buffer.Clone() as byte[];
//Buffer = new byte[ReceivedLength + ReceiveCount];
//Temp.CopyTo(Buffer, 0);
//E.Data.CopyTo(Buffer, ReceivedLength);
Buffer = E.Data;
Buffer.CopyTo(FullData, ReceivedLength);
ReceivedLength += ReceiveCount;
ReceiveOnce?.Invoke(this, new ReceiveOnceEventArgs()
{
Socket = Socket,
NewData = Buffer,
CumulativeLength = ReceivedLength,
ReceivedLength = ReceiveCount,
TotalLength = DataLength,
Status = Status
});
if (ReceivedLength >= DataLength)
{
Status = ReceiverStatus.Extractable;
}
}
//向客户端发送数据完成
private void client_SendCompleted(object sender, SocketEventArgs e)
{
SendCompleted?.Invoke(this, e);
}